Common Causes Of Nausea

Diarrhea

Diarrhea is a condition that occurs when individuals experience loose, watery stools. Severe diarrhea may be uncontrollable. Diarrhea is a sign of gastrointestinal distress, and it's often accompanied by nausea and cramping. Some patients experience nausea right before they throw up, while others might experience nausea before a loose stool. The cause of nausea, in this case, is a signal being sent to the nervous system. There are nerves throughout the digestive lining that can become irritated in a variety of different circumstances. Sometimes this happens when individuals eat a food they can't digest, or when the system is exposed to viruses or bacteria that pose a health threat. When this is the case, the irritated nerves tell the individual's body to expel the digestive system's contents as fast as possible. Depending on where the contents of the digestive system are, this might result in diarrhea or vomiting. Nausea and diarrhea can go hand-in-hand, and they're most common when individuals experience food poisoning or the stomach flu.

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Fever

A fever can sometimes cause nausea, or at least present alongside nausea. Fevers occur when the immune system raises the body's overall temperature in response to an infection or illness. Some researchers believe this is an attempt to kill off pathogens that can't survive at high temperatures. Many infections and illnesses can cause a fever. One of the most common that also causes nausea is the stomach flu, and it is among the most common causes of food-transmitted illnesses found in the United States. Usually, the underlying condition that causes a fever is also what causes nausea. If an individual's body temperature rises high enough that they feel sick because of it alone, they should see a doctor. Fevers are considered high when an individual's temperature rises to levels higher than 103 degrees Fahrenheit. Extremely high fevers can cause serious damage to the organs and brain, and they may be an indicator the individual's body isn't equipped to fight off the infection.